Ahmed K. Farahat Ali Ghodsi Mohamed S. Kamel A novel greedy algorithm for Nyström approximation. 269-277 2011 15 Journal of Machine Learning Research - Proceedings Track http://www.jmlr.org/proceedings/papers/v15/farahat11a/farahat11a.pdf db/journals/jmlr/jmlrp15.html#FarahatGK11